Designed to sit lower in the water and turn larger props, the available Command Thrust gearcase lifts heavy boats on plane more easily and holds them there at lower speeds without impacting top speed.
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- New
- In Stock
- Outboard
- Four Stroke
- 21937
- Powered
- 40 HP
2024 Mercury Marine® FourStroke 40 EFI
Held to a Higher Standard.There are plenty of good reasons these outboards rule the water. Start with no-worry reliability. More low-end torque for excellent acceleration. Increased fuel economy and outstanding overall performance. Enhanced fuel injection (EFI models) for boosted efficiency. A robust electrical system with a high-output alternator to keep batteries charged and fishing electronics humming. They have everything you need, and nothing you don't.
Mercury EFI outboards deliver reliable turnkey starts, improved fuel efficiency, and instant throttle response.
- New
- 21937
- 2024
- Mercury Marine®
- FourStroke 40 EFI
- Outboard
- Four Stroke
- MERCURY 40ELPT COMMAND THRUST
- Single Outboard
- Powered
- 40 HP
- 40 HP (30 KW)
- Inline 3
- 45.6 CID (747 CC)
- RPM: 5500-6000
- Recommended: Mercury FourStroke 25W40 Marine Oil
- 2.00:1 | Shift: F-N-R
- CARB star rating: 3
- 2.56" (65 mm)
- 2.95" (75 mm)
- ECM 70
- Remote | Remote
- 18 amp (226 watt)
- Electric (turn-key)
- induction: 2 valves per cylinder, single overhead cam (SOHC) | Electronic Fuel Injection (EFI) | Cooling: Water-cooled with thermostat | Exhaust: Through prop
- Recommended: 87 octane / up to 10% ethanol
- Shaft: 15" (381 mm) | 20" (508 mm)
- Lightest model available: 204 lbs (93 kg)
- Engine protection operator warning system: Low oil pressure/Over-rev/Overheat | Compatible with SmartCraft digital technology: Yes | Trim system: Gas assist/Power Tilt/Power Trim | Lubrication system: Wet sump | Shallow water trim range (degrees): 20
- Phantom Black
Command Thrust gearcase
Designed to sit lower in the water and turn larger props, the available Command Thrust gearcase lifts heavy boats on plane more easily and holds them there at lower speeds without impacting top speed.